Solve the differential equation with initial condition.y' = 5y, y(0) = 4
A. y = 4e(1/5)t
B. y = 4e5t
C. y = 5e4t
D. y = e20t
Answer: B
Mathematics
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Find the limit L for the given function f, the point x0, and the positive number ?. Then find a number ? > 0 such that, for all x, 
f(x) = 
, x0 = 7, ? = 0.4
A. L = 4; ? = 1.56 B. L = 4; ? = 0.78 C. L = 4; ? = 7.78 D. L = 4; ? = 0.64
Mathematics
Find the indicated vector.Let u = 
, v = 
. Find v - u.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the given relationship defines a function. If so, identify the independent and dependent variable, and why the relationship is a function.A customer's savings account number n given the number of years y the account has been active.
A. Yes; y, n; there is one account number n in any given year y. B. No
Mathematics